Shuusa
Published
--use-gl=no
The launcher will appear blank without the added launch option, but will be technically functional - if you can figure out where things are. Aside from that, it runs pretty much just as well as in Windows.
PROTON_NO_ESYNC=1
Generally performs at roughly 30% of Windows'. Lowest graphical settings and a reduction in render resolution can result in playable framerates.
Two DLL files fail to verify as the game starts - these can be ignored, but you may have to tab over to them to close them. DX11 (default) works fairly well, and was all that worked for me anyway. DX12 starts, but crashes after a minute. Vulkan doesn't launch at all.
Certain situations (character creation, skydiving, lockpicking) can cause up to an 80% performance loss on top of the already bad performance, lasting indefinitely. Performance could be slowly restored once out of the situation by tweaking render resolution slightly, but will return if you perform the action again.
EAC fails to start, even with Proton Experimental.
Performance is... Bad. That's about all there is to it. It can be worked around and dealt with if you really want to, and only want to play solo, but it won't be especially pleasent.
ACE Anti-Cheat malfunctions under Proton, preventing play.
The game otherwise appears to load up fine, it's just ACE kicks you out after 30 seconds, and won't let you play.
